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US 2020/0091534 A1Published application
Preassembly of elements for manufacturing a membrane / electrode assembly
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsPierrick BUVAT, Stéphane CARRIERE, Claude BONNIN, Jérôme SERRE, Paul NGUYEN
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Abstract
The invention relates to a method for manufacturing a polymer electrolyte membrane/fuel cell electrode assembly consisting in assembling a reinforcing membrane with a polymer electrolyte membrane at a temperature higher than a subsequent handling temperature of said assembly thus formed.
Claims18
-7. (canceled)
A method for pre-assembling components of a polymer electrolyte membrane/electrode assembly for fuel cells comprising the following steps:
- a) providing a first reinforcing membrane comprising an outer edge and an inner edge defining an opening,
- b) providing a polymer electrolyte membrane capable of sealing said opening of the reinforcing membrane,
- c) the polymer electrolyte membrane and the first reinforcing membrane being under first conditions of temperature and humidity:
- c1) superimposing the polymer electrolyte membrane and the first reinforcing membrane so that the polymer electrolyte membrane seals the opening of the reinforcing membrane, then
- c2) connecting the polymer electrolyte membrane to the first reinforcing membrane,
- d) placing the assembly formed at the end of step c) on a support under second temperature and humidity conditions such that the polymer electrolyte membrane expands compared to its state under the first temperature and humidity conditions.
3 more elements
Dependencies are inferred from the claim text.